Improvement in plows



117.1.. MATHEWS Plow.

No. 198,778. Patented Jan. 1,1878.

r mf/QM? N4 PETERS, FHDTO-LITHOGRAPHEH. WASHINGTON. 11C.

UNITED STATEs PATENT OEEICE.

WILLIAM L. MATHEWS, OF IMLAY CITY, MICHIGAN.

IMPROVEMENT IN PLows.

1 r Speciiioation forming part of Letters Patent No. 198,773, datedJanuary 1, 1878; application `filed i v r i September 11, 41877. r

`Ilo all whom it may concern: Be it known that I, WILLIAM L. MATHEWS, ofImlay City, in the coimty of Lapeer and r State of Michigan, haveinvented certain .new

and useful Improvements in Plows; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it pertains to make anduse it, reference being had `to the accompanying drawing, which formspart of this specication.

My invention relates to an improvement in plows; and it consists in anadjustable divided beam, whereby one, two, or three horses may beemployed at will, and in the pecu- 'liar construction and arrangement ofparts,

whereby a simple, light-draft, and effective plow is produced, as willbe more fully described hereinafter. 1

- a represents a beam, divided in or near the middle, the two pieces ofwhich are joined, as shown. The forward end of the rear half of the beamhas a portion of it cut away, the rear end of the forward half being ofa corresponding shape, so as to form a perfect joint when combined.

The two sides of the joint which come in contact with each other areprovided with notches b, .by means of which the forward half of the beamcan be adjusted to any desired angle, so that one, two, or three horsesmay be used, as required.

In order to securely fasten the two pieces of the beam together, theupper surface of the lower half of the joint is provided with a circulariiange, c, which fits into a corresponding indentation in the other halfof the joint, by means of which the two pieces are securely pivoted, allstrain being removed from the bolt d, which is employed to hold. themtogether.

To the outer'end of the beam a is secured a wheel, c, by means of theslotted standard f, the inner side of which standard is curved,

so that the wheel may always be placed in line when the beam is adjustedat an angle.

At a suitable distance in front of the moldboard is placed a colter, g,which is secured `to the beam by means of a suitable clamping device,and braced in position by means of the rod or bar Z, the rear end ofwhich bar is pivoted to the standard. Its front end is forked, so as tohold the colter, to which it is secured by means of a screw.

By this arrangement the colter can be adjusted either up or down, so asto out a substliil furrow on the corner of furrow cut by the p ow.'

The lower end of the colter is formed into a sharp blade, some distancefrom the cuttingedge of which is secured the jointer or moldboard h,which is made so as to conform as nearly as possible to theshape of themoldy board c'.

To the front side of the standard is secured the mold-board c', theouter edge of which en- A tirely covers the front side of the standard,so as to prevent the latter from bein g worn, and which has its loweredge curved spirally upward and backward. The upper edge of this moldboard projects j backwardly and outwardly over the lower edge. The boarditself, between these two edges, is curved, as shown,

'and its rear end is curved backward to a considerable distance, withthe lower edge much one, two, or three horses, substantially as shown.

2. In combination with the beam a, made in two parts, and provided withthe notches b and flange c, the colter g, jointer h, and brace l, thecolter being` fastened to the beam at a point to the rear of the joint,whereby the beam can be adjusted Without interfering with the positionof the colter, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this27th day of August, A. D. 1877. I

wM. L. MATIIEws.

Witnesses:

H. A. QUACKENBUsH, A. F. MARTIN.

